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The Centre for
Heart & Vascular Health
Preventive & Integrative Cardiovascular Medicine
@ Heart Center of North Texas
Welcome to the Centre
Planning your visit:
We want your experience to be pleasant and informative. It has been 30 years since I received my doctorate from the University of Texas and I do not claim to know everything. I do believe that healing requires the integration of body, mind and spirit and inflammation drives much of the heart & vascular disease. This does not mean we abandon Evidence-Based Medicine and current guidelines. Clients often will be taking multiple over-the-counter supplements, many of which lack any safety or efficacy data to support, yet desire to spend our visit complaining about prescribed medications and perceived side effects.
Evidence-Based Medicine is a blend of the best evidence and clinical expertise with patient values and preferences in pursuit of the best possible outcomes. I understand clients will read and hear things from various media sources and I want you to stay informed; however, don't miss the science. If a client has significant heart and vascular disease, we need to address, not only lifestyle modification, but blood pressure, lipids and inflammation. Some clients will offer me a speech on the dangers of Chantix while continuing to smoke packs of cigarettes daily. We must be willing to think logically and follow the best evidence possible. I will not argue that I know everything and current belief is sometimes replaced years later. That is the art and science of medicine.
Medicine is not always black and white. There are certainly areas that are grey or we just don't know. Dr. Tricoci and colleagues at Duke Medical Center, found that cardiology guidelines were based largely on weak evidence of expert opinion with only 19% of guidelines having level A evidence (good science well-studied!) to back the recommendations.
People often want to tell me what they've heard about statins. I read everything that I can, both good and bad. All drugs have effects and no one is denying that fact, but heart and vascular disease are the number one killer of people. Often our lifestyle has dangerous side effects and we ignore this aspect of our journey to better heart & vascular health.
A recent client survived breast cancer treatment only to have a heart attack at age 45. She refused to take a statin due to perceived side effects she read about online. She was working hard to change her diet, exercise more regularly and reduce stress in her life. She was taking her blood pressure medications and aspirin, but simply did not want to take a statin. It is not my position to force anyone to do something they wish to avoid, but I will make certain you understand the indication and possible outcome if you do not follow the guielines.
Once she was willing we discussed the studies in Europe demonstrating a significant reduction in recurrent breast cancer in those women taking statins. What? Yes, a 14-year study in more than 1 million people found that statins are associated with lower rates of breast cancer and subsequent mortality. The women with high cholesterol had a 45% reduced risk of breast cancer, and if they did develop breast cancer, a 40% reduced chance of death. * see European Society of Cardiology - 2017, "Statins linked to lower rates of breast cancer and mortality." She decided to take a statin and work on lifestyle and has done fine. It is important to follow and monitor labs to make certain one is tolerating therapy. Her greatest risk is still dying from a heart attack. Heart & vascular disease are responsible for killing more women than cancer. It is important to know you risk and get sound advice.
Preventive Cardiology is about trying to put the odds in your favor. No one can guarantee that any advice or treatment plan will prevent a heart attack or stroke. It is not that simple and multiple factors are at play. I must admit that I do not believe pills in the absence of real lifestyle modification works to prevent disease. Medications are typically crutches until you get it right. Taking diabetic medications, but refusing to follow a diet like Joel Fuhrman's The End of Diabetes or at least accepting the basics of a diabetic, anti-inflammatory diet, probably does not work for most people. Diabetes care is about more than just lowering blood sugar levels.
I am not a Concierge Physician and I understand many of you are followed by a concierge clinic. This clinic is still based on the insurance model and must make certain we have approval for your visits. A number of my clients have or retain their cardiologist as well. This is fine. I do not mind working with other cardiologists and blending my recommendations with their treatment plan. We have no problem seeing clients for a second opinion or you seeking other opinion after our visit. You are the key person and we want to make certain you get the best care possible.
We often have students from a number of university programs studying with us and you will enjoy their interactions as well. My mentors taught me that the Art of Listening and physical examination are key to the proper diagnosis and treatment of individuals. Every patient is important and time must be shared amongst all of them under the current insurance model. The current Healthcare climate has made the physician-patient interaction much more difficult, but if we work as a team, including you, it works must better.
I want you to realize that your appointment time with me is your arrival time. It is often not the time you will begin your interaction with me. Once you arrive the staff will begin to verify insurance, gather and enter data into the electronic health record take vital signs and perform EKGs. I understand many travel a distance, but most plans do not allow us to see you in clinic for consultation and then perform testing on the same day. Some prefer to get testing performed the same day and pay cash, but since most required & necessary testing is covered I would usually recommend we schedule testing in the future or prior to the visit. I did not create the rules of healthcare, but I am working to make the assessment more efficient within these restraints.
If you are a new client, it is important that we have old records and that you basically prepare for this examination. Think about the prior testing completed in the past and try to bring those records with you, I.e., laboratory testing, screening tests from companies like LifeLine, stress tests, screening exams or invasive procedures,heart catheterizationsor records from hospitalizations related to your heart and vascular system. Your visit may be delayed if we have to wait on key information. I expect you to have skin in the game. I do not desire clients to be passive. We will work together to reach your healthcare goals. I want you moving towards thriving and not simply surviving!
If I am delayed, there was good reason, I don't play golf and will not tolerate angst from clients for things beyond my control. The stress of current medical practices can be harmful to physician's health and wellbeing and I have chosen to avoid. This is not a fast clinic, nor a general medicine clinic, we are focused on heart & vascular preventive medicine and will discuss lifestyle, stress, fitness, nutrition and other aspects of what YOU can do to improve your health.
We want you happy and satisfied. We understand we don't fit every personality or demand. I have not yet decided if we will offer an Enhanced-access model at The Centre in 2018, but we are in discussion currently to determine if it will work with our patients. I have always tried to be inclusive and not exclusive in the care we offer to clients.
If we work together and understand the goals, then we will both enjoy the interaction. I explain to my students and residents that patient satisfaction is important, but it is not the top priority. There was a recent 10-year study at UCLA that was halted early after they found a 238% increase in mortality and a 146% increase in morbidity associated with those patients who were in the most satisfied groups. This often happens when the physician's focus is redirected to pleasing instead of actually providing honest opinion and care. If you are looking for a fast doctor who can speed through the day, please keep looking. That is not who I am or who I plan to be in the future.
Preventive care is not cheap. It never has been cheap. I expect you to have certain tests if I am to follow you. This will be directed based on each patient's age, risks, history and findings. I utilize CT calcium scores, carotid CIMTs, advanced lipid testing, inflammatory testing and sleep testing. Some tests are considered preventive and not covered by insurance. I am not willing to argue about the nuances of insurance coverage nor have the time. I still require these tests and related data. You have car insurance. If you crash into a building it will usually pay for the damages, repairs and perhaps a new car. Your car insurance does not pay for oil changes, brake repair and general maintenance that helps to reduce the chances of your having an accident. At least mine doesn't. It is your responsibility to maintain your car and unfortunately most people take better care of the cars than their bodies. I've often felt it would be in the best interest of auto insurance companies to better screen drivers for sleep apnea, attention deficit disorder and road rage. This would probably make a major impact on insurance costs and traffic related injuries and deaths, but isn't the current practice. Current medical guidelines and insurance tend to be reactive than proactive or preventive.
I want you to be familiar with mindfulness, breath work, yoga-based techniques, stress reduction and meditation and working to thrive, not simply survive until your next heart attack. I want to watch the video, The Last Heart Attack with Dr. Gupta and think you will enjoy reading Dr. Masley's book, The 30 Day Heart Tune Up. You ultimately decide your path and I am not here to coerce anyone to follow my recommendations. This is your path and everyone is different.
I added key concepts on this page for you to review to help you understand my philosophy in preventive heart & vascular medicine. You must understand that you will follow-up at times with my Advanced Practice Clinicians, Internal Medicine residents or CV Fellows at times, but they will be communicating with me as well. There is not enough time in the day for me to follow every patient at every follow-up visit and this cannot be your expectation.
If you have any testing completed, we will try to give you basic results at the time. You should have a follow-up within 1-2 weeks after testing. If you do not hear from us within 1-2 weeks or cannot keep your follow-up for results of testing, you must contact us to get your results. Do not assume that any test result is "okay" until you hear the results from us. You must hear about your results whether normal or abnormal. If you miss your follow-up for results, you must make or reschedule a follow-up or call us to inquire about final recommendations.
Your health and treatment are important and we must work as a team. This is for your safety whether testing is completed in our facilities or an outside testing facility. We must follow thru until your evaluation is completed.
More to come and I wish you all the best on your journey to better heart & vascular health.
Stephen


About 610,000 people die of heart disease in the U.S. every year.
Heart disease is the leading cause of death for both men and women.
Coronary Heart Disease, is the most common type of heart disease, killing over 370,000 people each year.
Over 700,000 Americans have a heart attack every year.
More than 42 million women are currently living with some form of heart & vascular disease.
35% of deaths in American women over the age of 20, or more than 432,000, are caused for heart & vascular disease each year.
More women die from attacks each year than breast cancer. 5 times as many!
Nearly 5/10 adults in the U.S. have high blood pressure. High blood pressure is a MAJOR risk factor for heart disease, stroke, heart failure and kidney disease.
Exercise tolerance (fitness) and your heart's pumping ability (LVEF) helps predict survival.
Any type of physical activity is good for the heart based on studies from Canada & Scotland. The PURE study found that rates of death, heart attacks and stroke were significantly decreased with increasing levels of physical activity.
People with at least 150 minutes of moderate physical activity each week had a 22% lower risk of death or risk of major cardiovascular events compared with those with low activity levels.
Prevention is not cheap; however, a one day stay in the hospital for a stent cost many patients $50,000 or more. A bypass, can cost $70,000 to $200,00, not including time off work, rehab and complications.
Millions of Americans have stents or small wire cages placed to open narrowed or clotted heart arteries and many are convinced these devices are protecting them from future heart attacks, but this is not true.
Stents unquestionably save lives and can quickly open an occluded artery that is the culprit of a heart attack, but there is no convincing evidence that stents somehow reduce heart attack risks. See InterHeart study and Courage trial.
Predicting where a heart attack will occur is very difficult, if not impossible with current technology, but studies are ongoing.
It is known that certain plaques, with thin walls or caps over the messy, inflammatory plaque in the artery wall, can breakdown and result in a sudden plaque rupture. These are called vulnerable plaques and increase likelihood of heart attacks. This abruptly causes blood flow to decrease or stop, thus an acute coronary syndrome or heart attack.
"People believe that if they have a blockage, they have to fix it mechanically," said Dr. Judith S. Hochman, NYU Langone. Quoted in the mobile NY Times. "It seems logical, but in medicine, many things that seem logical are not true."
Even mild or moderate heart vessel plaques that are not causing chest pain or abnormalities on a stress test can be the cause of heart attacks.
Heart or coronary arteries can actually be forgiving and enlarge to accommodate up to 40% of their volume in plaque before the lumen of the artery is ultimately compromised.
It is important to realize that a "normal" coronary angiogram does not always mean there is no coronary artery plaque or atherosclerosis.
A normal exercise stress test actually means it is "low risk" and does not exclude the presence of coronary artery plaque or atherosclerosis. We use the Duke Treadmill Score and other risk scores to assist us with determining risk. An artery will usually need to be 70% or more narrowed to reduce flow enough to cause heart pain (angina) or an abnormal stress EKG. Stress EKG or even Stress Cardiac Perfusion Imaging can be "normal" or "low risk" despite the presence of atherosclerosis.
A CT calcium score of "0" means there was not identifiable "calcified" coronary artery plaque or atherosclerosis. It does not exclude soft, non calcified plaque in the coronary arteries. A score of 400 or greater indicates a high likelihood of significant narrowing of at least one coronary artery. Every client's score is correlated with other findings and symptoms since it is possible to have multivessel coronary artery disease requiring bypass surgery with a CT calcium of 0. A risk a 1% of less is low, but 1/100 requires that we consider all data.
Images used for teaching our patients regarding coronary angiography: A male in his 60s was experiencing chest pain and his stress test was positive. His coronary angiogram at first was felt to be "normal" with only mild narrowing in the right coronary artery. Using IVUS or intra- vascular ultrasound, we were able to see more plaque than was at first suspected by the narrowing on the heart cath or angiogram. Coronary FFR is also used to measure flow reserve across a heart artery narrowing to determine if these areas are actually the flow-limiting culprit vessels causing chest pain or abnormalities on stress testing. Since he had a strongly positive stress test and limiting chest pain despite being on aggressive medical therapy, a stent was placed and he has done very well since; however, is continuing on aggressive preventive measures and medical therapy.


360 degree image taken with intravascular ultrasound catheter from within the coronary artery. The blue circle is the outer limits of the coronary artery and the green circle is the open lumen of the artery that is still allowing for blood flow. The echos within the blue to green circles is plaque or atherosclerosis. The difference was measured and the artery was narrowed 75.8% despite the mild appearing narrowing in the right coronary artery angiogram above.
Coming Soon:
Cardiac CTA images using Heart Flow FFR evaluation of coronary arteries with noninvasive method.

This model of the coronary or heart artery can be helpful when explaining disease progression. The section to the left is of a normal artery with minimal thickness of the inner most layer or endothelium. Plaque is due to inflammation and begins within the wall of the arteries. The artery will attempt to remodel or enlarge to accommodate the new addition which is composed of lipid and immune cells and debris. This will continue to grow and inflame until the artery lumen, or central area where blood flows through, is narrowed. Once an artery is about 70% or more narrowed, some individuals may begin to experience discomfort (chest, back, neck, arm or other), but not everyone has symptoms or warnings that the arteries are narrowed. The model section on the left shows the plaque building up within the wall and you can clearly see how the artery is enlarged in an attempt to maintain flow through the artery's lumen. There is a limit to how much the artery can enlarge and then the plaque will begin to narrow the lumen.
Q: Why Was My Stress Test Abnormal but My Coronary Angiogram Normal?
A: A stress test evaluates how well blood flows to your heart muscle during exercise or stress, which may reveal areas of reduced blood flow (ischemia). However, a normal coronary angiogram doesn’t always mean there’s no disease present in the arteries. Here’s why:
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Limited View of the Coronary Arteries: Coronary angiography provides a view of about 15% of the coronary artery lumen. It visualizes the inside (lumen) of the artery but may not reveal plaque that has built up within the artery walls and outside the view of the artery lumen. .
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Plaque Outside the Lumen (Arterial Remodeling): Early stages of coronary artery disease often involve remodeling, where plaque grows in the arterial wall, expanding outward rather than inward. This keeps the artery lumen appearing open, even when significant plaque is present. I see patients with CT calcium scores that are very high and the coronary angiogram or heart catheterization is reported as "normal" or "patent arteries". They still have coronary artery disease and increased risk for heart attack. They still need aggressive therapy to reduce risk.
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Endothelial Dysfunction and Microvascular Disease: The stress test may indicate blood flow issues due to endothelial dysfunction (when blood vessels don’t expand well) or microvascular disease (affecting small arteries). These conditions can reduce blood flow without showing up on an angiogram.
Academic Insight: Recent research emphasizes the role of endothelial dysfunction and microvascular disease in heart disease. Although the main coronary arteries may appear patent, underlying issues can still contribute to symptoms and increased cardiovascular risk. Despite the lumen not being 70% or more narrowed or stenosed, the heart' arteries cannot respond to increased blood flow demands and thus an abnormal stress test or anginal type chest pain. This is quite common and must be addressed.
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References:
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Shaw LJ, et al. "Coronary Artery Disease and the Use of Coronary Artery Calcification, CT Angiography, and Stress Testing." Journal of the American College of Cardiology, 2017.
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Epstein SE, et al. "Microvascular angina: The next frontier for cardiovascular disease." The Lancet, 2020.
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